Im looking to build up my TTR to race the 50 stock mod class. Does any one have any tips? Im not looking to do BBK, but everything else. Any advice would be helpfull. Where should I start?
ItsBrett_205 said:just bought a yamaha breeze cam. im lookin into gettin jet kit and filter. what else be good mods? lightend flywheel?
TyConway said:also since you don't wanna do a bbk, pull the base gasket out and just put a small amount of gasket maker on it, This will bump the compression up just a lil. But every little bit helps. TTR90 heads bolt on also
ItsBrett_205 said:Thats what I hear, but what about the compressin chamber? would it be bigger than the ttr50 head? There for loseing compression?
If I run a 90 head would I be able to use the Breeze cam? Also what about the 90 carm and intake manifold? Would they work?
TyConway said:also the cheap 24mm mikuni carbs on ebay for $25 bucks works really well. actually ran those on my ttr 110 and had one on my 50 for a while.
YZ250F4ever said:I have a GYTR shock spring for sale for $42 shipped brand new would you be interested in that for your TTR? just let me know. its a really nice HD spring.
TyConway said:I'm not sure on that one... But if you have a 90 head theres aftermarket cams for it. No point in running a breeze cam, its not aggressive.
Also putting the 90 head on may lower compression a little. I wouldn't do that unless i was gonna do a bkk. I had to remove material in my combustion chamber on my 90 head when i used the Takegawa high compression piston so it would clear with no interference.
But the 90 head has larger valves so more air flow allows more fuel to burn, and larger cam so that will help out even if compression is drop a tad.
As for carb and intake i had a Takegawa intake and carb from the hyper s kit. I went through a bunch of different setups on my bike. alot of stuff will fit and work.